.reg {
  width: 100%;
  min-height: 100vh;
  background-image: url(../img/login/bg-right-bottom.svg);
  background-position: right bottom;
  background-repeat: no-repeat;
  background-size: 50vw auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.reg > div{
  width: 400px;
  min-height: 400px;
  height: auto;
  background-color: #FFFFFF;
  box-shadow: 0 0 30px #999;
  position: relative;
}
.reg h1 {
  font-size: 1.5rem;
  font-weight: bold;
  position: relative;
  margin-bottom: 1rem;
  text-indent: .5rem;
}
.reg h1::before {
  content: "";
  width: 100%;
  height: 1px;
  border-bottom: solid 1px rgb(204, 204, 204);
  position: absolute;
  bottom: -7px;
  left: 0px;
}
.reg .login {
  position: absolute;
  right: 50px;
  top:52px;
}
.reg .code-img {
  cursor: pointer;
}